Choosing between Smartlead and Apollo.io for your agency? Both are popular choices. Smartlead starts at $39+/mo and is best known as Scalable cold outreach with rotating inboxes. Apollo.io starts at Free / $49+/mo and is B2B lead database plus outbound engagement. Below is a side-by-side breakdown of features, pricing, pros, and cons to help you decide which fits your agency's workflow and budget in 2026.
Sl
Smartlead
Scalable cold outreach with rotating inboxes.
$39+/mo
👍 Pros
- White-label for agencies
- Inbox rotation
- Unified master inbox
👎 Cons
- UI can be complex
- Requires warmup discipline
Ap
Apollo.io
B2B lead database plus outbound engagement.
Free / $49+/mo
👍 Pros
- Huge contact database
- Find + engage in one place
- Good free tier
👎 Cons
- Data accuracy varies
- Sending limits on lower tiers